All MIBs › CTRMONXT-MIB › ctDiscoveryNMMACAddress
ctDiscoveryNMMACAddress
Module: CTRMONXT-MIB
OID (symbolic): CTRMONXT-MIB::ctDiscoveryNMMACAddress
OID (numeric): 1.3.6.1.4.1.52.4.3.2.20.4.1.2
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-only
Description: The MAC layer address of this MAC/Network association
What is ctDiscoveryNMMACAddress?
This is an octet-string OID holding the Ethernet MAC address side of a discovered MAC-to-network-address pairing that the RMON-extension agent detected on the wire. Because CTRMONXT builds each entry as a MAC/Network association, seeing this MAC address lets an admin tie a specific network-layer address back to the physical NIC that's actually generating that traffic. For example, if IP address 10.1.1.50 shows up misbehaving, an admin can poll ctDiscoveryNMMACAddress for the matching ctDiscoveryNMTable row to learn which host's MAC actually owns that address.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.3.2.20.4.1.2 snmpwalk -v2c -c public <target> CTRMONXT-MIB::ctDiscoveryNMMACAddress
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.3.2.20.4.1.2.1 snmpget -v2c -c public <target> CTRMONXT-MIB::ctDiscoveryNMMACAddress.1
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OID Breakdown
Upper-level ancestors (10 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.52 | cabletron | Cabletron-MIB |
| 1.3.6.1.4.1.52.4 | mibs | CT-PRIORITY-QUEUING |
| 1.3.6.1.4.1.52.4.3 | ctronExtn | CTRON-MIB-NAMES |
| 1.3.6.1.4.1.52.4.3.2 | ctronRmon | CTRON-MIB-NAMES |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.3.2.20 | ctDiscovery | CTRMONXT-MIB |
| 1.3.6.1.4.1.52.4.3.2.20.4 | ctDiscoveryNMTable | CTRMONXT-MIB |
| 1.3.6.1.4.1.52.4.3.2.20.4.1 | ctDiscoveryNMEntry | CTRMONXT-MIB |
| 1.3.6.1.4.1.52.4.3.2.20.4.1.2 | ctDiscoveryNMMACAddress | CTRMONXT-MIB |